Miner&#39;s acetylene-gas lamp.



W. HARRISON. MINERS ACETYLENE GAS LAMP. APPLICATION FILED N0v.s,1913.

Patented 001). 13, 1914.

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W. HARRISON.

MINERS AGETYLENB GAS LAMP.

APPLICATION FILED Nov. s, 191s.

Patented Oct. 13, 1914.

2 SHEETS-SHEET 2.r

.filled or replenished. ln this inzuuiei, while one carbid chamber isbeing refilled, their)l .is no necessityv of extinguishing the light,"

UNITED STAQDEQAEENT OFFICE.

WALTER HARRISON, 0F DEWMAINE, ILLINOIS.

MINERS ACETYLENE-GAS LAMP.

Specification of Letters Patent.

Patented oct. 13.1.5114.

Application filed November 3,'1913. Seria! No. 799,011.

useful Miners Acetylene-Gas Lamp; and" I do hereby declare the followingto be a *full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertaiiis to makeandE `use the saine.

This -invention relates to ,a new and` ilsefulminers acetylene gaslamp.

One of. the obiects ot' the invention is vto .provide an improved lampof this cliaracteijf havingT two carbid chambers for the generation ofgas passing into. a gas chamber, og'ne `ofl saidy carbid chambers being'used at .a4 time, and while the carbid in one eban'ibmj is being used,the other chamber may be reas there ,is in other miners` lamps.

In' practical fields theidetails ot construction niav'neeesjsitatealterations, to which ...the patentee is entitled, rnoi-'idcd thealtera-Q foi-th, shown in the drawings and claimed.'

tions .fvall .-'within the. claimed.

The invention comprises further features and combination'of parts,Yhereinafter setl scope of whatl is In the drawings: Figure 1. is avertical l. sectionalview through the improved niiuers Vacetylene gaslamp. F ig. 2 is a scetioi'ial view online 2)2- of Fig. l. Fig` 3 isa-'sec tional view on line 3 3 of Fig. 1. Fig. l' is a view siniilaitoFig. 3 showingithe cir- ,u cular door o!) adpisted so that openings mand 62 are in registration. Fig. 5 is a view similar to Figs. and 4shoe-'ing openings 56 and 61 in registration. Fig. 6 is a detail view ofthe means to be engaged by one of the portions or lugs 27 to hold rod 23up.

Referring niore particularly to the drawings; l designates the easing ofthe lamp having a hook 2, whereby the lamp inav be Aattached to a minershelmet or cap. This casing comprises two parts 2 and 3 connectedtogether by the band 4 there being a gasket 5 t0 insure the tight joint.The part 2 is subdivided into two compartments (S and 7, the CompartmentG adapted to contain water, while the compartment 7 eonstitutes a gaschamber.

The divisional plate between the compartments 6 andv 7- is designated bythe' vpocket 1,0.

shown).

` the felt 12. which gas their passes th Vvter is passed into thechamber (3, there' yH. and through thetop of the part 3l li lsuitablemeans' ,'19 'lforn'iiiig two' K andeach of thetubes liextends int( thelower ends of thev tubes .as to generate gas. lThe valves '2l -ind la reheld openedy Abyineans of the sprin' ,ends 28 of, the valve rods are outof c' ment with the notches .20 of the projet ineral S.` Thedivisionalplate is prov ded with' an opening 9, adjoining which'is a 11designatesa jet fastened inthe wiill ol. the part 2havi`ng the usual'va'lifellii'i't The gas from the gas ehem?` is thoroughly cleaned as itpasses 'thro the pocket`10, andthrough the jet, provided, however, thevalve (not shown) 7-operi The gas is lighted at the small orilieefl ofthe jet. Thetop of the part 2- is provided with an opening 1l throughwhichftheing a plug 15 foiyelosiiig-the openinfrfl-i. l' Y l i v lubeslo extend from the top of the part 2 dtnvn-wartllv through thedivisional the tubes 1G pass through 'theidiV plate S and the top 17oil. the'paiit i siii-h that si fu" i'iiai' lic pro, 'led to' linsurethe t 'lhe part l sul. 'vided b v a dir `Aarbid cliaiz'nlietlicsechambers. Mounted in erich tubi valve rod. 'Mounted vupon tl '.ilvsand Zf are valves iind'2:..=,-fo

l u lli, an one ortthe'othei'fof-'tlie.rods and operated so :is to'unseat the v .nd

25 lwater is allowed to reach the eafreid in one oit the other of theycarbid Chamb" that is. when the portions 27 of the lia'iidle 20 of thetop of the pant 2. `The springs 26 act between the shoulders 21 and the.collars 32, so as to hold the valves 33 and valves 25k and 25 open,thereby allowing water which passes through the openings 34 and of thetubes 16, t pass through the tubes and into the carbid chambers.However, only one set of valves is open at a time, say for instance thevalve 24 and tie valve 33 on the same rod 22. To close the valves 24 and25, their respective rods are raised, so that the portion 27 will`engage the-notch of the projection 30. The purpose of providing eachvalve rod with two valves, is to insure the gas from the carbid .fromescaping, when said "alves are closed.

Extending from the top ofv the part 2 downwardly through the partition 8and terminating a short distance above the top 17 of the part 3 aretubes 38 and 39 having valve rods 40 and 41,the upper ends of which arethreaded at 42 in the tubes 38 and 39. The lower end of the rods 40 and41 are provided with valves 43 and 44, for closing the valve openings 45and 46. Only one of the openings 45 and 46, say for instance, theopening 45, is opened at one time, so as to permit the gas to enter thegas chamber 7, and as the gas enters the chamber 7 it is cleaned orstrained of dirtl by felt 47. The gas in the chamber passes through thefelt 12, and then through the jet, where it is lighted at the smallorifice.

The part 3 is provided with/Ea bottom 49 secured between the shoulder'50 and the flange 51, as shown there being washers 53. The partition 19of the part 3 is provided with flanges 54, there being washers 55, toinsure against leakage from the carbid chambers. The bottom 49 isprovided with two openings 56 and 57, through which the carbid may bedeposited in the carbid chambers 20 and 21. The partition- 19 isprovided with a threaded projection 58, on which is held a circular diskdoor 59, by means of the small button 60, which is threaded to theprojection 58. Ihis circular disk door is provided with openings 61 and62, which are so arranged relative to the openings 56 and 57, that bothof the openings 56 and 57 may be closed at one time, but also soarranged that when the disk vdoor is in a position as shown in Fig. 5,only one of the openings 56 and 57, say for instance the opening 56,' isopen at one time, while the other is closed, as shown in Fig. 5. A guardclosure or hood 64 is threaded at 65 to the lower portion, of the part3, to prevent accidental dlsplacement of the small button 60 and thedisk door. Arranged between the disk door and the bottom 49 are washers66 and 67, to insure against leakage of the water which enters thecarbid chambers for moistening the carbid.

From the foregoing it will be noted an improved practical miners lamphas been devised, and one which has been found desirable, owing to thefact that while the carbid in one chamber is generating gas for the gaschamber, the other gas chamber may be refilled, without extinguishingthe light at the small orifice of the jet.

The invention having been set forth, what is claimed as new and usefulis In a device as set forth, a casing having a water chamber in the topportion, and two carbid chambers in the lower portion, and a gas chamberbetween the carbid chambers and the water chamber, means for permittingwater to pass from the water chamber into one or the other of saidcarbid chambers, means for controlling the gas from one or the other ofthe carbid chambers to the gas chamber, and means for consuming the gasfrom the gas chamber, the bottom of the carbid chambers having openings,an adjustable disk circular door for the opening provided with openings,so arranged relatlve. to the openings of the bottom, that both' openingsof the bottom may be closed by the door, or only one opening' atl a timeof the bottom may be opened, and a guard threaded on 'the lower portionof the casing for guarding the door against accidental movement.

In testimony whereof I have signed my name to this specification in thepresencel l L. G. Cosrny, H. I. KING.

